Combined bench stop and pivoted clamp



Sept. 25, 1956 S. G. MORGENSTERN COMBINED BENCH STOP AND PIVOTED CLAMP Filed Aug. 10', 1954 L l6 ,4 F; 22 25 l I r I 1 7 2/ b 9 U 5 G M r 23 Ya 5 in a T i g INVENTOR.

I: I 1 I m I WW FM United States Patent COMBINED BENCH STOP AND PIVOTED CLAMP Sam G. Morgenstern, Great Bend, Kans.

Application August 10, 1954, Serial No. 448,831

2 Claims. (Cl. 144-307) The present invention relates to new and useful improvements in carpenters clamps for use on a conventional work bench, saw horse or other suitable support and has for its primary object to provide, in a manner as hereinafter set forth, novel means for firmly holding a piece of lumber to be planed.

Another very important object of the invention is to provide a clamp of the aforementioned character which will automatically adjust itself to accommodate pieces of lumber of various sizes.

Other objects of the invention are to provide a carpenters clamp of the character set forth which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use, compact, light in weight and Which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a perspective view, showing a clamp constructed in accordance with the present invention in use.

Figure 2 is a top plan view of the device.

Figure 3 is a view in transverse section, taken substantially on the line 3-3 of Figure 2.

Referring now to the drawing in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a substantially square metallic plate 5 of suitable dimensions. The plate 5 is to be secured on a suitable support such, for instance, as one end portion of a conventional work bench 6. Toward this end, the plate 5 is apertured to accommodate countersunk screws 7. The plate 5 further includes, on one end, a depending flange 8 for engagement with the end of the bench 6.

Mounted on the plate 5 is a longitudinally extending stationary jaw 9 of angle iron. The base 10 of the stationary jaw 9 is apertured to accommodate securing bolts 11. Wing nuts 12 are threaded on the bolts 11. The bolts 11 are engageable selectively in openings 13 provided therefor in the plate 5 for adjustably securing the stationary jaw 9 on said plate.

At its forward end, the stationary jaw 9 terminates in a laterally bent, substantially U-shaped hook 14 constitutin a stop for the work, such as 15. An anchor screw 16 is threadedly mounted in the bight portion of the hook 14 for engagement with the opposed end of the work 15. The screw 16 terminates in a bit 17 which is adapted to bite into the work to function as a hold-down therefor. The stationary aw 9term1nates, at its rear end, in an outwardly curved guide 18 for the work 15.

Pivotally mounted for swinging movement on the plate 2,764,196 iatented Sept. 25, 1956 and cooperable with the stationary jaw 9 is a pivoted angular jaw 19. The base 20 of the pivoted jaw 19 is apertured to accommodate a pivot bolt 21 which is mounted in the plate 5. Also mounted on the bolt 21 is a spring 22 having one end portion engaged with the jaw 19 for yieldingly urging same toward the stationary jaw 9 to closed position. A bolt 23 anchors the other end of the spring 22 to the plate 5. At its free or rear end, the pivoted jaw 22 terminates in an outwardly curved guide 24.

It is thought that the operation of the clamp will be readily apparent from a consideration of the foregoing. Briefly, the plate 5 is positioned on one end portion of the work bench 6 with the flange 8 abutting said work bench. Of course, the plate 5 is secured by the screws 7 on the work bench 6. Normally, the pivoted jaw 19 is yieldingly retained in closed position by the spring 22. The piece of lumber to be planed, such as 15, is inserted between the guides 18 and 24 and pushed forwardly between the jaws 9 and 19 against the tension of the spring 22. The work 15 enters the stop hook 14 and is impaled on the anchor 16. In this manner the lumber is firmly secured in position and is ready to be planed. Pivoted, spring-actuated jaw 19 will accommodate lumber of various thicknesses within a given range. For lumber of thicknesses above this range, the stationary jaw 9 may be moved outwardly on the plate 5. The construction and arrangement is such as to permit the lumber to be readily removed after the planing operation has been completed. The plate 5 includes a beveled rear end portion 25 to facilitate sliding the work thereon.

It is believed that the many advantages of a clamp constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction may be resorted to which will fall within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A carpenters clamp comprising: a horizontal plate for mounting on a support, a stationary jaw mounted on the plate, a pivoted jaw mounted on the plate and cooperable with the stationary jaw, said jaws for the reception of the work therebetween, resilient means yieldingly urging the pivoted jaw toward closed position, and means for anchoring the work in position between the jaws, said means including a substantially U-shaped, lateral hook on one end of the stationary jaw for the reception of the work, and a hold-down bit threadedly mounted in the bight portion of the hook and adapted to be embedded in the work.

2. A carpenters clamp comprising: an elongated jaw, means for mounting said jaw on a support, a substantially U-shaped lateral hook, for the reception of the work, on one end of the jaw, and a thumb screw threadedly mounted in the bight portion of the hook, said thumb screw including a bit adapted to be embedded in the work and constituting a hold-down therefor.

References Cited in the file of this patent UNITED STATES PATENTS 599,613 Knudsen Feb. 22, 1898 949,096 Stetson Feb. 15, 1910 960,053 Stiver May 31, 1910 978,918 McCoy Dec. 20, 1910 1,373,198 Munger Mar. 29, 1921 1,407,743 Franck Feb. 28, 1922 1,650,331 Davis Nov. 22, 1927 

